타임리프에서 조건식
타임리프는 해당 조건이 맞지 않으면 태그 자체를 렌더링하지 않는다.
**th:if="조건식"****th:unless="조건식"(if의 반대)**- 조건을 여러개 걸어줄 경우에는
and와or를 사용 th:if="조건1 and 조건2"
- 조건을 여러개 걸어줄 경우에는
- switch-case문
***:** 디폴트
basicController
@Controller
@RequestMapping("/basic")
public class basicController {
@GetMapping("/condition")
public String condition(Model model) {
addUsers(model);
return "basic/condition";
}
private void addUsers(Model model) {
List<User> list = new ArrayList<>();
list.add(new User("userA", 10));
list.add(new User("userB", 20));
list.add(new User("userC", 30));
model.addAttribute("users", list);
}
}basic/condition.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>if, unless</h1>
<table border="1">
<tr>
<th>count</th>
<th>username</th>
<th>age</th>
</tr>
<tr th:each="user, userStat : ${users}">
<td th:text="${userStat.count}">1</td>
<td th:text="${user.username}">username</td>
<td>
<span th:text="${user.age}">0</span>
<span th:text="'미성년자'" th:if="${user.age} lt 20"></span>
<span th:text="'미성년자'" th:unless="${user.age ge 20}"></span>
</td>
</tr>
</table>
<h1>switch</h1>
<table border="1">
<tr>
<th>count</th>
<th>username</th>
<th>age</th>
</tr>
<tr th:each="user, userStat : ${users}">
<td th:text="${userStat.count}">1</td>
<td th:text="${user.username}">username</td>
<td th:switch="${user.age}">
<span th:case="10">10살</span>
<span th:case="20">20살</span>
<span th:case="*">기타</span>
</td>
</tr>
</table>
</body>
</html>실행 결과
Just for fun